SP507 EXAR | Alldatasheet
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Technical content
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation ■ Interface Modes Supported: ■ Software Selectable Protocols ■ Highest Differential Transmission Rates available at over 20Mbps ■ +5V Only Operation ■ Seven (7) Drivers and Seven (7) Receivers ■ Driver and Receiver Tri-state Control ■ Internal Transceiver Termination Resistors for V.11 and V.35 Protocols ■ Improved ESD Tolerance for Analog I/Os ■ Compliant to NET1/2 and TBR2 Physical Layer Requirements ■ Used in WAN Serial Ports in Routers Switches, DSU/CSU's and other Access Devices ■ Available in 80-Lead LQFP
DESCRIPTION
The SP507 is a monolithic IC that supports seven (7) popular serial interface standards for DTE/DCE connectivity. The seven (7) drivers and seven (7) receivers transmit and receive signals at over 20Mbps. The SP507 requires no additional external components for compliant operation for all seven (7) modes of operation. All necessary termination is integrated within the SP507 and is switchable when V.35 drivers, V.35 receivers, and V.11 receivers are used. The SP507 can operate as either a DTE or DCE. Additional features include a latch enable pin with the driver and receiver address decoder. Tri-state ability for the driver and receiver outputs is controlled by supplying a 3-bit word into the address decoder. Four (4) drivers and four (4) receivers in the SP507 include separate enable pins for added convenience. EIA-530 WAN V.35 SP507 5V Single Chip WAN Multi-Mode Serial Transceiver RxD 1 RTEN 2 RREN 3 TMEN 4 LLEN 5 TTEN 6 SCTEN 7 LATCH 8 TERM_OFF 9 M2 10 M1 11 M0 12 DTR 13 TxD 14 TxCE 15 RTS 16 RL 17 RLEN 18 DCD 19 RxC 20 TM 21 DCE_ST 22 STEN 23 LL 24 VCC 25 C1+ 26 VDD 27 C2+ 28 GND 29 C1– 30 C2– 31 VSS 32 VCC 33 GND 34 RR(a) 35 RR(b) 36 RT(a) 37 RT(b) 38 TM(a) 39 TM(b) 40
60 GND
59 SD(b)
58 TR(a)
57 GND
56 TR(b)
54 RS(a)
53 GND
52 RS(b)
51 LL(a)
50 GND
49 LL(b)
47 RL(a)
46 GND
45 RL(b)
44 ST(b)
43 GND
42 ST(a)
80 CTS
79 DTE_ST
78 DSR
77 SCT(b)
76 SCT(a)
75 GND
73 VCC
72 GND
71 RD(b)
70 RD(a)
69 DM(b)
68 DM(a)
67 CS(b)
66 CS(a)
65 TT(b)
64 GND
63 TT(a)
61 SD(a)
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation SPECIFICATIONS TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted. MIN. TYP. MAX. UNITS CONDITIONS LOGIC INPUTS VIL 0.8 Volts VIH 2.0 Volts LOGIC OUTPUTS VOL 0.4 Volts I OUT= –3.2mA VOH 2.4 Volts I OUT= 1.0mA V.28 DRIVER DC Parameters Outputs Open Circuit Voltage ±15 Volts per Figure 1 Loaded Voltage ±5.0 ±15 Volts per Figure 2 Short-Circuit Current ±100 mA per Figure 4 Power-Off Impedance 300 Ω per Figure 5 AC Parameters V CC = +5V for AC parameters Outputs Transition Time 1.5 µs per Figure 6; +3V to -3V Instantaneous Slew Rate 30 V/ µs per Figure 3 Propagation Delay tPHL 0.5 1 5 µs tPLH 0.5 1 5 µs Max.Transmission Rate 120 230 kbps V.28 RECEIVER DC Parameters Inputs Input Impedance 3 7 k Ω per Figure 7 Open-Circuit Bias +2.0 Volts per Figure 8 HIGH Threshold 1.7 3.0 Volts LOW Threshold 0.8 1.2 Volts AC Parameters V CC = +5V for AC parameters Propagation Delay tPHL 50 100 500 ns tPLH 50 100 500 ns ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. V Input Voltages: Output Voltages: CC+0.5V) Power Dissipation per package 80-pin QFP (derate 18.3mW/°C above +70°C)..1500mW STORAGE CONSIDERATIONS Due to the relatively large package size of the 80-pin quad flat-pack, storage in a low humidity environment is preferred. Large high density plastic packages are moisture sensitive and should be stored in Dry Vapor Barrier Bags. Prior to usage, the parts should remain bagged and stored below 40°C and 60%RH. If the parts are removed from the bag, they should be used within 48 hours or stored in an environment at or below 20%RH. If the above conditions cannot be followed, the parts should be baked for four hours at 125°C in order remove moisture prior to soldering. Exar ships the 80- pin LQFP in Dry Vapor Barrier Bags with a humidity indicator card and desiccant pack. The humidity indicator should be below 30%RH.
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation SPECIFICATIONS TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted. MIN. TYP. MAX. UNITS CONDITIONS V.28 RECEIVER (continued) AC Parameters (cont.) Max.Transmission Rate 120 230 kbps V.10 DRIVER DC Parameters Outputs Open Circuit Voltage ±4.0 ±6.0 Volts pe r Figure 9 Test-Terminated Voltage 0.9V OC Volts per Figure 10 Short-Circuit Current ±150 mA per Figure 11 Power-Off Current ±100 µA per Figure 12 AC Parameters V CC = +5V for AC parameters Outputs Transition Time 200 ns per Figure 13; 10% to 90% Propagation Delay t PHL 50 100 500 ns tPLH 50 100 500 ns Max.Transmission Rate 120 kbps V.10 RECEIVER DC Parameters Inputs Input Current –3.25 +3.25 mA per Figures 14 and 15 Input Impedance 4 k Ω Sensitivity ±0.3 Volts AC Parameters V CC = +5V for AC parameters Propagation Delay tPHL 50 120 250 ns tPLH 50 120 250 ns Max.Transmission Rate 120 kbps V.11 DRIVER DC Parameters Outputs Open Circuit Voltage ±5.0 Volts per Figure 16 Test Terminated Voltage ±2.0 Volts per Figure 17 0.5V OC 0.67VOC Volts Balance ±0.4 Volts per Figure 17 Offset +3.0 Volts per Figure 17 Short-Circuit Current ±150 mA per Figure 18 Power-Off Current ±100 µA per Figure 19 AC Parameters V CC = +5V for AC parameters Outputs Transition Time 20 ns per Figures 21 and 36; 10% to 90% Propagation Delay t PHL 50 65 85 ns per Figures 33 and 36, C L = 50pF tPLH 50 65 85 ns per Figures 33 and 36, C L = 50pF Differential Skew 10 20 ns per Figures 33 and 36, C L = 50pF Max.Transmission Rate 20 Mbps per Figure 33, C L = 50pF fIN = 10MHz V.11 RECEIVER DC Parameters Inputs Common Mode Range –7 +7 Volts Sensitivity ±0.3 Volts
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation SPECIFICATIONS TA = +25°C and VCC = +4.75V to +5.25V unless otherwise noted. MIN. TYP. MAX. UNITS CONDITIONS V.11 RECEIVER (continued) DC Parameters (cont.) Input Current –3.25 ±3.25 mA per Figure 20 and 22 Current w/100Ω Termination ±60.75 mA per Figure 23 and 24 Input Impedance 4 k Ω AC Parameters V CC = +5V for AC parameters Propagation Delay t PHL 30 65 85 ns per Figures 33 and 38; C L = 50pF tPLH 30 65 85 ns per Figures 33 and 38; C L = 50pF Differential Skew 10 ns per Figure 33; C L = 50pF Max.Transmission Rate 20 Mbps per Figure 33; C L = 50pF fIN = 10MHz V.35 DRIVER DC Parameters Outputs Open Circuit Voltage ±1.20 Volts per Figure 16 Test Terminated Voltage ±0.44 ±0.66 Volts per Figure 25 Offset ±0.6 Volts per Figure 25 Source Impedance 50 150 Ω per Figure 27; Z S = V2/V1 x 50Ω Short-Circuit Impedance 135 165 Ω per Figure 28 AC Parameters V CC = +5V for AC parameters Outputs Transition Time 30 40 ns per Figure 29; 10% to 90% Propagation Delay t PHL 50 70 90 ns per Figures 33 and 36; C L = 20pF tPLH 50 70 90 ns per Figures 33 and 36; C L = 20pF Differential Skew 7 10 ns per Figures 33 and 36; C L = 20pF Max.Transmission Rate 20 Mbps per Figure 33; C L = 20pF fIN = 10MHz V.35 RECEIVER DC Parameters Inputs Sensitivity ±80 mV Source Impedance 90 110 Ω per Figure 30; Z S = V2/V1 x 50Ω Short-Circuit Impedance 135 165 Ω per Figure 31 AC Parameters V CC = +5V for AC parameters Propagation Delay t PHL 30 75 90 ns per Figures 33 and 38; C L = 20pF tPLH 30 75 90 ns per Figures 33 and 38; C L = 20pF Differential Skew 10 ns per Figure 33; C L = 20pF Max.Transmission Rate 20 Mbps per Figure 33; C L = 20pF fIN = 10MHz TRANSCEIVER LEAKAGE CURRENTS Driver Output 3-State Current 500 µA per Figure 32; Drivers disabled Rcvr Output 3-State Current 1 10 µA Mx = 111, 0.4V - V O - 2.4V
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation OTHER AC CHARACTERISTICS TA = +25°C and VCC = +5.0V unless otherwise noted. PARAMETER MIN. TYP. MAX. UNITS CONDITIONS DRIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE RS-232/V.28 tPZL; Tri-state to Output LOW 0.70 5.0 µsC L = 100pF, Fig. 34 & 40; S1 closed tPZH; Tri-state to Output HIGH 0.40 2.0 µsC L = 100pF, Fig. 34 & 40; S2 closed tPLZ; Output LOW to Tri-state 0.20 2.0 µsC L = 100pF, Fig. 34 & 40; S1 closed tPHZ; Output HIGH to Tri-state 0.40 2.0 µsC L = 100pF, Fig. 34 & 40; S2 closed RS-423/V.10 tPZL; Tri-state to Output LOW 0.15 2.0 µsC L = 100pF, Fig. 34 & 40; S1 closed tPZH; Tri-state to Output HIGH 0.20 2.0 µsC L = 100pF, Fig. 34 & 40; S2 closed tPLZ; Output LOW to Tri-state 0.20 2.0 µsC L = 100pF, Fig. 34 & 40; S1 closed tPHZ; Output HIGH to Tri-state 0.15 2.0 µsC L = 100pF, Fig. 34 & 40; S2 closed RS-422/V.11 tPZL; Tri-state to Output LOW 2.80 10.0 µsC L = 100pF, Fig. 34 & 37; S1 closed tPZH; Tri-state to Output HIGH 0.10 2.0 µsC L = 100pF, Fig. 34 & 37; S2 closed tPLZ; Output LOW to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 34 & 37; S1 closed tPHZ; Output HIGH to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 34 & 37; S2 closed V.35 tPZL; Tri-state to Output LOW 2.60 10.0 µsC L = 100pF, Fig. 34 & 37; S1 closed tPZH; Tri-state to Output HIGH 0.10 2.0 µsC L = 100pF, Fig. 34 & 37; S2 closed tPLZ; Output LOW to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 34 & 37; S1 closed tPHZ; Output HIGH to Tri-state 0.15 2.0 µsC L = 15pF, Fig. 34 & 37; S2 closed RECEIVER DELAY TIME BETWEEN ACTIVE MODE AND TRI-STATE MODE RS-232/V.28 tPZL; Tri-state to Output LOW 0.12 2.0 µsC L = 100pF, Fig. 35 & 38; S1 closed tPZH; Tri-state to Output HIGH 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S2 closed tPLZ; Output LOW to Tri-state 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S1 closed tPHZ; Output HIGH to Tri-state 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S2 closed RS-423/V.10 tPZL; Tri-state to Output LOW 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S1 closed tPZH; Tri-state to Output HIGH 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S2 closed tPLZ; Output LOW to Tri-state 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S1 closed tPHZ; Output HIGH to Tri-state 0.10 2.0 µsC L = 100pF, Fig. 35 & 38; S2 closed
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation OTHER AC CHARACTERISTICS (Continued) TA = +25°C and VCC = +5.0V unless otherwise noted. PARAMETER MIN. TYP. MAX. UNITS CONDITIONS POWER REQUIREMENTS PARAMETER MIN. TYP. MAX. UNITS CONDITIONS VCC 4.75 5.00 5.25 Volts ICC (No Mode Selected) 30 mA All ICC values are with VCC = +5V (V.28/RS-232) 65 mA f IN = 120kbps; Drivers active & loaded. (V.11/X.21) 175 mA f IN = 10Mbps; Drivers active & loaded. (EIA-530 & RS-449) 250 mA f IN = 10Mbps; Drivers active & loaded. (V.35) 100 mA V.35 @ fIN = 10Mbps, V.28 @ 120kbps; Drivers active & loaded. RS-422/V.11 tPZL; Tri-state to Output LOW 0.10 2.0 µsC L = 100pF, Fig. 35 & 39; S1 closed tPZH; Tri-state to Output HIGH 0.10 2.0 µsC L = 100pF, Fig. 35 & 39; S2 closed tPLZ; Output LOW to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 35 & 39; S1 closed tPHZ; Output HIGH to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 35 & 39; S2 closed V.35 tPZL; Tri-state to Output LOW 0.10 2.0 µsC L = 100pF, Fig. 35 & 39; S1 closed tPZH; Tri-state to Output HIGH 0.10 2.0 µsC L = 100pF, Fig. 35 & 39; S2 closed tPLZ; Output LOW to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 35 & 39; S1 closed tPHZ; Output HIGH to Tri-state 0.10 2.0 µsC L = 15pF, Fig. 35 & 39; S2 closed TRANSCEIVER TO TRANSCEIVER SKEW (per Figures 33, 36, 38) V.28 Driver 100 ns [ (t phl )Tx1 – (tphl )Tx6,7 ] 100 ns [ (t plh )Tx1 – (tplh )Tx6,7 ] V.28 Receiver 20 ns [ (t phl )Rx1 – (tphl )Rx2,7 ] 20 ns [ (t plh )Rx1 – (tphl )Rx2,7 ] V.11 Driver 2 ns [ (t phl )Tx1 – (tphl )Tx6,7 ] 2n s [ ( t plh )Tx1 – (tplh )Tx6,7 ] V.11 Receiver 3 ns [ (t phl )Rx1 – (tphl )Rx2,7 ] 3n s [ ( t plh )Rx1 – (tphl )Rx2,7 ] V.10 Driver 5 ns [ (t phl )Tx2 – (tphl )Tx3,4,5 ] 5n s [ ( t plh )Tx2 – (tplh )Tx3,4,5 ] V.10 Receiver 5 ns [ (t phl )Rx2 – (tphl )Rx3,4,5 ] 5n s [ ( t plh )Rx2 – (tphl )Rx3,4,5 ] V.35 Driver 4 ns [ (t phl )Tx1 – (tphl )Tx6,7 ] 4n s [ ( t plh )Tx1 – (tplh )Tx6,7 ] V.35 Receiver 6 ns [ (t phl )Rx1 – (tphl )Rx2,7 ] 6n s [ ( t plh )Rx1 – (tphl )Rx2,7 ]
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation PINOUT (LQFP) PIN ASSIGNMENTS CLOCK AND DATA GROUP Pin 1 — RxD — Receive Data; TTL output, sourced from RD(a) and RD(b) inputs. Pin 14 — TxD — TTL input ; transmit data source for SD(a) and SD(b) outputs. Pin 15 — TxCE — Transmit Clock; TTL input for TT driver outputs. Pin 20 — RxC — Receive Clock; TTL output sourced from RT(a) and RT(b) inputs. Pin 22 — DCE_ST — Send Timing; TTL input; source for ST(a) and ST(b) outputs. Pin 37 — RT(a) — Receive Timing; analog input, inverted; source for RxC. Pin 38 — RT(b) — Receive Timing; analog input, non-inverted; source for RxC. Pin 42 — ST(a) — Send Timing; analog output, inverted; sourced from DCE_ST. Pin 44 — ST(b) — Send Timing; analog output, non-inverted; sourced from DCE_ST. Pin 59 — SD(b) — Analog Out — Send data, non-inverted; sourced from TxD. Pin 61 — SD(a) — Analog Out — Send data, inverted; sourced from TxD. Pin 63 — TT(a) — Analog Out — Terminal Timing, inverted; sourced from TxCE. Pin 65 — TT(b) — Analog Out — Terminal Timing, non–inverted; sourced from TxCE. Pin 70 — RD(a) — Receive Data, analog input; inverted; source for RxD. Pin 71 — RD(b) — Receive Data; analog input; non-inverted; source for RxD. Pin 76 — SCT(a) — Serial Clock Transmit; analog input, inverted; source for DCE_ST. Pin 77 — SCT(b) — Serial Clock Transmit: analog input, non–inverted; source for DCE_ST. Pin 79 — DTE_ST — Serial Clock Transmit; TTL output; sources from SCT(a) and SCT(b) inputs. CONTROL LINE GROUP Pin 13 — DTR — Data Terminal Ready; TTL input; source for TR(a) and TR(b) outputs. Pin 16 — RTS — Ready To Send; TTL input; source for RS(a) and RS(b) outputs. Pin 17 — RL — Remote Loopback; TTL input; source for RL(a) and RL(b) outputs. Pin 19 — DCD— Data Carrier Detect; TTL output; sourced from RR(a) and RR(b) in- puts. Pin 21 — TM — Ring In; TTL output; sourced from TM(a) and TM(b) inputs. Pin 24 — LL — Local Loopback; TTL input; source for LL(a) and LL(b) outputs. Pin 35 — RR(a)— Receiver Ready; analog input, inverted; source for DCD. Pin 36 — RR(b)— Receiver Ready; analog input, non-inverted; source for DCD. Pin 39 — TM(a)— Incoming Call; analog input, inverted; source for TM. Pin 40 — TM(b)— Incoming Call; analog input, non-inverted; source for TM. RxD 1 RTEN 2 RREN 3 TMEN 4 LLEN 5 TTEN 6 SCTEN 7 LATCH 8 TERM_OFF 9 M2 10 M1 11 M0 12 DTR 13 TxD 14 TxCE 15 RTS 16 RL 17 RLEN 18 DCD 19 RxC 20 TM 21 DCE_ST 22 STEN 23 LL 24 VCC 25 C1+ 26 VDD 27 C2+ 28 GND 29 C1– 30 C2– 31 VSS 32 VCC 33 GND 34 RR(a) 35 RR(b) 36 RT(a) 37 RT(b) 38 TM(a) 39 TM(b) 40
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation Pin 45 — RL(b) — Remote Loopback; analog output, non-inverted; sourced from RL. Pin 47 — RL(a) — Remote Loopback; analog output inverted; sourced from RL. Pin 49— LL(b) — Local Loopback; analog output, non-inverted; sourced from LL. Pin 51 — LL(a) — Local Loopback; analog output, inverted; sourced from LL. Pin 52 — RS(b) — Ready To Send; analog output, non-inverted; sourced from RTS. Pin 54 — RS(a) — Ready To Send; analog output, inverted; sourced from RTS. Pin 56 — TR(b) — Terminal Ready; analog output, non-inverted; sourced from DTR. Pin 58 — TR(a) — Terminal Ready; analog output, inverted; sourced from DTR. Pin 66 — CS(a)— Clear To Send; analog input, inverted; source for CTS. Pin 67 — CS(b)— Clear To Send; analog input, non-inverted; source for CTS. Pin 68 — DM(a)— Data Mode; analog input, inverted; source for DSR. Pin 69 — DM(b)— Data Mode; analog input, non-inverted; source for DSR Pin 78 — DSR— Data Set Ready; TTL output; sourced from DM(a) and DM(b) in- puts. Pin 80 — CTS— Clear To Send; TTL output; sourced from CS(a) and CS(b) inputs. CONTROL REGISTERS Pin 2 — RTEN — Enables RxC receiver, active low; TTL input. Pin 3 — RREN — Enables DCD receiver, active low; TTL input. Pin 4 — TMEN — Enables TM receiver, active high; TTL input. Pin 5 — LLEN — Enables LL driver, active low; TTL input. Pin 6 — TTEN — Enables TxCE driver, active high; TTL input. Pin 7 — SCTEN — Enables DTE_ST re- ceiver; active low; TTL input. Pin 8 — LATCH — Latch control for decoder bits (pins 10-12), active low. Logic high input will make decoder transparent. Pin 9 — TERM_OFF — Disables receiver termination networks for RxD, RxC, and DTE_ST; TTL input. Pins 10,11, 12 — M2, M1, M0 — Transmitter and receiver decode register; configures transmitter and receiver modes; TTL inputs. Pin 18 — RLEN — Enables RL driver; active high; TTL input. Pin 23 — STEN — Enables DTE_ST driver; active high; TTL input. POWER SUPPLIES Pins 25, 33, 41, 48, 55, 62, 73, 74 — V CC — +5V input. Pins 29, 34, 43, 46, 50, 53, 57, 60, 64, 72, 75 — GND — Ground. Pin 27 — VDD +10V Charge Pump Capacitor — Connects from V DD to V CC. Suggested capacitor size is 22µF, 16V. Pin 32 — VSS –10V Charge Pump Capacitor — Connects from ground to VSS. Suggested capacitor size is 22µF, 16V. Pins 26 and 30 — C 1 + and C1 – — Charge Pump Capacitor — Connects from C1 + to C1 Suggested capacitor size is 22µF, 16V. Pins 28 and 31 — C 2 + and C2 – — Charge Pump Capacitor — Connects from C2 + to C2 Suggested capacitor size is 22µF, 16V.
14 TxD
22 DCE_ST
23 STEN
15 TxCE
6 TTEN
13 DTR
16 RTS
18 RLEN
5 LLEN
9 TERM_OFF
Figure 45. Typical Operating Circuit
Table 1. SP507 Driver Decoder Table Table 2. SP507 Receiver Decoder Table
Figure 46. Mode Diagram – V.11
Figure 47. Mode Diagram – EIA-530A
Figure 48. Mode Diagram – EIA-530
Figure 49. Mode Diagram – X.21
17 RLDM(a) 68
Figure 50. Mode Diagram – V.35
Figure 51. Mode Diagram – RS-449
Figure 52. Mode Diagram – RS-232
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation PACKAGE: 80 PIN LQFP
SP507_100_081208 SP507 Multi–Mode Serial Transceiver © Copyright 2008 Exar Corporation
ORDERING INFORMATION
Model Temperature Range Package Types Please consult the factory for pricing and availability on a Tape-On-Reel option. NOTICE EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration purposes and may vary depending upon a user’s specific application. While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances. Copyright 2008 EXAR Corporation Datasheet August 2008 Send your technical inquiry with details to: uarttechsupport@exar.com Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. DATE REVISION DESCRIPTION 1/27/04 A Implemented tracking revision. 8/12/08 1.0.0 SP507 is no longer available in MQFP package per PCN 07-1102- 06a. In addition, SP507 is now only available in a Pb-Free, RoHS compliant package. MQFP package drawing has been replaced with the LQFP package drawing. Ordering information has been updated. Changed to Exar datasheet format and revision to 1.0.0.